CN103658738A - Machining equipment and method of taper hole in locomotive hollow shaft - Google Patents
Machining equipment and method of taper hole in locomotive hollow shaft Download PDFInfo
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- CN103658738A CN103658738A CN201310660539.5A CN201310660539A CN103658738A CN 103658738 A CN103658738 A CN 103658738A CN 201310660539 A CN201310660539 A CN 201310660539A CN 103658738 A CN103658738 A CN 103658738A
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- hollow shaft
- hollow
- main spindle
- spindle box
- guider
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/06—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring conical holes
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses machining equipment of a taper hole in a locomotive hollow shaft. The machining equipment comprises a hollow inner hole main shaft box, a large sliding plate mechanism, a small sliding plate mechanism, a boring cutter holder, a lengthened boring rod and a boring cutter body. The machining equipment is characterized in that a guiding device which can move in a feeding mode in the horizontal direction and the longitudinal direction is arranged on the other side of a lathe base relative to the large sliding plate mechanism and the small sliding plate mechanism, the main shaft box with a hollow inner hole is placed between the guiding device, the large sliding plate mechanism and the small sliding plate mechanism, a hollow shaft locating sleeve is arranged in the hollow inner hole main shaft box, centering chucks are arranged at the two ends of the hollow inner hole main shaft box, and a hydraulic lifting support is arranged in the middle of a lathe. Supporting parts are arranged at the two ends of the lengthened boring rod during machining, the rigidness of the boring rod is good, vibration cannot be generated easily, the roughness of the inner taper hole can be lower than 3.2 after machining, taper hole machining errors are small, wall thickness evenness of the hollow shaft can be guaranteed, and production efficiency is improved by 5 times.
Description
Technical field
The present invention relates to a kind of locomotive hollow shaft internal taper hole process equipment and method, belong to railway locomotive manufacturing technology field.
Background technology
Hollow shaft is the critical component of engine truck drive unit, the driving force that motor produces is exported through driven gear output, process hollow shaft etc., finally be delivered to train wheel, Hollow Shaft Transmission device has been born all motions between train wheel and drive unit, the alternate load of bearing high strength.The taper hole structure that hollow shaft endoporus is long 1.3 meters, requires taper hole taper error little, guarantees that the wall thickness of hollow shaft is even.During prior art processing hollow shaft internal taper hole, the three-jaw card of hollow shaft of take is benchmark, with centering chuck, hollow shaft is clamped concentric with machine tool chief axis, boring cutter seat is installed on small slide plate, the clamping of boring cutter seat has lengthening boring bar, manually adjust boring cutter seat and dial angle Shi Qi center line parallel in hollow shaft endoporus contour, lengthen on boring bar boring cutter body is housed, add lathe spindle drive hollow shaft one end rotation in man-hour, centre frame supporting rotation for the other end, lathe big cargo chute advances, and drives small slide plate and lengthens the processing that boring bar completes hollow shaft internal taper hole, sees Fig. 2.This processing mode, long 1.5 meters of boring bar, boring bar diameter is 0.15 meter, draw ratio reaches 1:10, lengthens boring bar the foot section brought counterweight, thereby boring bar rigidity wretched insufficiency, boring bar high vibration in processing, not only crudy is poor, and roughness is low, and due to poor rigidity, when running into hollow shaft material and having hardness inhomogeneous, taper hole tapering is overproof, can not guarantee that the wall thickness of hollow shaft is even, and production efficiency is very low.
Summary of the invention
Object of the present invention overcomes the deficiency of above-mentioned prior art exactly, provides a kind of and process good rigidly, processes taper hole taper error is little, guarantee hollow shaft wall thickness is even and production efficiency is high locomotive hollow shaft internal taper hole process equipment and method.
The object of the present invention is achieved like this: a kind of locomotive hollow shaft internal taper hole process equipment, comprise hollow endoporus main spindle box, big or small sled mechanism, boring cutter seat, lengthen boring bar and boring cutter body, it is characterized in that in machine base that opposite side with respect to big or small sled mechanism is provided with the guider can horizontal and vertical feeding moving, there is the main spindle box of hollow endoporus between guider and big or small sled mechanism, this hollow endoporus main spindle box is provided with hollow shaft positioning sleeve, the two ends of hollow endoporus main spindle box are provided with centering chuck, and hydraulic lifting supporting is equipped with at lathe middle part.
A locomotive hollow shaft internal taper hole processing method, is characterized in that taking the following step:
A. guider falls back on the longitudinal rear of lathe, by the suspender hollow shaft of slinging, the small end of hollow shaft is front, first one end locating surface B of hollow shaft is placed in the hollow shaft positioning sleeve of hollow endoporus main spindle box, laterally steadily advance, until locating surface A is placed to the correct position in hollow shaft positioning sleeve, adjust the centering chuck at hollow endoporus main spindle box two ends, make hollow shaft center consistent with the centre of gyration of hollow endoporus main spindle box, clamp hollow shaft;
B. make guider get back to the position consistent with the hollow endoporus main spindle box centre of gyration, the supporting of rise hydraulic lifting, supporting the lengthening boring bar that boring cutter body is housed, big slide plate traverse feed promotes to lengthen boring bar through hollow shaft endoporus, lengthens boring bar termination and enters bushing the location in guider;
C. fall hydraulic lifting supporting, boring-and-turning mill main shaft, numerical control transverse feed mechanism and the numerical control longitudinal feed mechanism of control guider and boring cutter seat, work synchronously both, difference by numerical control transverse feed mechanism and numerical control longitudinal feed mechanism cover to, complete the processing of hollow shaft internal taper hole;
D. hydraulic lifting supporting is risen, and mobile big slide plate exits lengthening boring bar, and guider is stepped back, and unclamps the centering chuck at hollow endoporus main spindle box two ends, and hollow shaft is released and hung away.
The solution of the present invention, has support owing to lengthening boring bar work in-process two ends, and in processing, boring bar rigidity is fine does not produce vibration, after processing, internal taper hole roughness can be lower than 3.2, processing taper hole taper error is little, can guarantee that the wall thickness of hollow shaft is even, and production efficiency improves five times.
Accompanying drawing explanation
Fig. 1 is locomotive hollow shaft structure schematic diagram.
Fig. 2 is the locomotive hollow shaft internal taper hole process equipment schematic diagram of prior art.
Fig. 3 is the locomotive hollow shaft internal taper hole process equipment schematic diagram of the embodiment of the present invention.
In figure, be labeled as: 1-main spindle box, 2-centering chuck E, 3-boring cutter body, 4-centre frame, 5-lengthens boring bar, 6-big slide plate, 7-small slide plate, 8-boring cutter seat, 9-counterweight, 10-guider numerical control transverse feed mechanism, 11-guider numerical control longitudinal feed mechanism, 12-bushing, 13-guider, 14-hollow endoporus main spindle box, 15-positioning sleeve, 16-centering chuck F, the supporting of 17-hydraulic lifting, 18-numerical control longitudinal feed mechanism, 19-numerical control transverse feed mechanism.
The specific embodiment
Referring to Fig. 3, the locomotive hollow shaft internal taper hole process equipment of the present embodiment, the diameter of bore of hollow endoporus main spindle box 14 is greater than the maximum gauge of hollow shaft two ends locating surface A, B.Positioning sleeve 15 is installed in endoporus, and hollow shaft two ends locating surface A, B and positioning sleeve 15 internal diameter directions have the gap value of 4mm.Hollow endoporus main spindle box 14 main two ends are provided with centering chuck E2 and centering chuck F16.One side of hollow endoporus main spindle box 14 is provided with guider 13, and guider 13(is provided with guider numerical control transverse feed mechanism 10 and guider longitudinal feed mechanism 11) can realize horizontal and vertical feeding and move.The opposite side of main spindle box has big slide plate 6 to have numerical control transverse feed mechanism 19 can realize traverse feed to move, small slide plate 7 is installed on big slide plate 6, and small slide plate 7 has numerical control longitudinal feed mechanism 18 can realize length feed to move.Boring cutter seat 8 is installed on small slide plate 7, and 8 clampings of boring cutter seat have the boring bar 5 of lengthening, and boring cutter seat 8 and lengthening boring bar 5 are realized and being rigidly connected by steady pin.
Main minute following four steps of processing.
The installation location of workpiece
Guider 13 falls back on the longitudinal rear of lathe, by the suspender hollow shaft of slinging, the small end of hollow shaft is front, first one end locating surface B of hollow shaft is placed in the hollow shaft positioning sleeve 15 of main spindle box, laterally steadily advance, until locating surface A is placed to the correct position in hollow shaft positioning sleeve, adjust centering chuck E2 and the centering chuck F16 at hollow endoporus main spindle box 14 two ends, make hollow shaft center consistent with the centre of gyration of hollow endoporus main spindle box 14, clamp hollow shaft.
The location of boring cutter
Make guider 13 get back to the position concentric with hollow endoporus main spindle box 14 centres of gyration, rise hydraulic lifting supporting 17, the lengthening boring bar 5 that boring cutter body 3 is housed is being supported in hydraulic lifting supporting 17, big slide plate 6 traverse feeds promote to lengthen boring bar 5 through hollow shaft endoporus, lengthen boring bar 5 terminations and enter bushing 12 location in guider.
Processing
Fall hydraulic lifting supporting 17, boring-and-turning mill main shaft, control numerical control transverse feed mechanism and the numerical control longitudinal feed mechanism of guider 13 and boring cutter seat 8, both are worked synchronously, difference by numerical control transverse feed mechanism 19 and numerical control longitudinal feed mechanism 18 cover to, complete the processing of hollow shaft internal taper hole;
Withdrawing and unload workpiece
Hydraulic lifting supporting 17 is risen, and mobile big slide plate 6 exits and lengthens boring bar 5, and guider 13 is stepped back, and unclamps centering chuck E2 and the centering chuck F16 at hollow endoporus main spindle box 14 two ends, and hollow shaft is released and hung away.
Claims (2)
1. a locomotive hollow shaft internal taper hole process equipment, comprise hollow endoporus main spindle box, big or small sled mechanism, boring cutter seat, lengthen boring bar and boring cutter body, it is characterized in that in machine base that opposite side with respect to big or small sled mechanism is provided with the guider can horizontal and vertical feeding moving, there is the main spindle box of hollow endoporus between guider and big or small sled mechanism, this hollow endoporus is provided with hollow shaft positioning sleeve, the two ends of main spindle box are provided with centering chuck, and hydraulic lifting supporting is equipped with at lathe middle part.
2. a locomotive hollow shaft internal taper hole processing method of utilizing equipment described in claim 1, is characterized in that taking the following step:
A. guider falls back on the longitudinal rear of lathe, by the suspender hollow shaft of slinging, the small end of hollow shaft is front, first one end locating surface B of hollow shaft is placed in the hollow shaft positioning sleeve of hollow endoporus main spindle box, laterally steadily advance, until locating surface A is placed to the correct position in hollow shaft positioning sleeve, adjust the centering chuck at hollow endoporus main spindle box two ends, make hollow shaft center consistent with the centre of gyration of hollow endoporus main spindle box, clamp hollow shaft;
B. make guider get back to the position concentric with the hollow endoporus main spindle box centre of gyration, the supporting of rise hydraulic lifting, supporting the lengthening boring bar that boring cutter body is housed, big slide plate traverse feed promotes to lengthen boring bar through hollow shaft endoporus, lengthens boring bar termination and enters bushing the location in guider;
C. fall hydraulic lifting supporting, boring-and-turning mill main spindle box, numerical control transverse feed mechanism and the numerical control longitudinal feed mechanism of control guider and boring cutter seat, work synchronously both, difference by numerical control transverse feed mechanism and numerical control longitudinal feed mechanism cover to, complete the processing of hollow shaft internal taper hole;
D. hydraulic lifting supporting is risen, and mobile big slide plate exits lengthening boring bar, and guider is stepped back, and unclamps the centering chuck at main spindle box two ends, and hollow shaft is released and hung away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660539.5A CN103658738B (en) | 2013-12-05 | 2013-12-05 | Locomotive hollow shaft internal taper hole process equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660539.5A CN103658738B (en) | 2013-12-05 | 2013-12-05 | Locomotive hollow shaft internal taper hole process equipment and method |
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| Publication Number | Publication Date |
|---|---|
| CN103658738A true CN103658738A (en) | 2014-03-26 |
| CN103658738B CN103658738B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310660539.5A Active CN103658738B (en) | 2013-12-05 | 2013-12-05 | Locomotive hollow shaft internal taper hole process equipment and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588683A (en) * | 2014-12-09 | 2015-05-06 | 齐齐哈尔雷昂重工机械制造有限责任公司 | Valve body segment inner cone hole machining process |
| CN109623406A (en) * | 2018-12-23 | 2019-04-16 | 冯建娟 | A kind of hollow axis machining apparatus of speed reducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5221234A (en) * | 1992-01-23 | 1993-06-22 | Andrew Pakos | Method and apparatus for making a screw having variably canted threads |
| US5713253A (en) * | 1994-10-07 | 1998-02-03 | Toshiba Kikai Kabushiki Kaisha | Rotational machining method |
| JP2007226146A (en) * | 2006-02-27 | 2007-09-06 | Canon Inc | Cutting method of supporter for cylindrical electrophotographic photoreceptor |
| CN102825293A (en) * | 2012-07-24 | 2012-12-19 | 古朝雄 | High-efficiency deep hole pull boring machine |
| CN203030961U (en) * | 2012-12-21 | 2013-07-03 | 杭州海兴机械有限公司 | Machine tool for elongated tapered holes |
-
2013
- 2013-12-05 CN CN201310660539.5A patent/CN103658738B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5221234A (en) * | 1992-01-23 | 1993-06-22 | Andrew Pakos | Method and apparatus for making a screw having variably canted threads |
| US5713253A (en) * | 1994-10-07 | 1998-02-03 | Toshiba Kikai Kabushiki Kaisha | Rotational machining method |
| JP2007226146A (en) * | 2006-02-27 | 2007-09-06 | Canon Inc | Cutting method of supporter for cylindrical electrophotographic photoreceptor |
| CN102825293A (en) * | 2012-07-24 | 2012-12-19 | 古朝雄 | High-efficiency deep hole pull boring machine |
| CN203030961U (en) * | 2012-12-21 | 2013-07-03 | 杭州海兴机械有限公司 | Machine tool for elongated tapered holes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588683A (en) * | 2014-12-09 | 2015-05-06 | 齐齐哈尔雷昂重工机械制造有限责任公司 | Valve body segment inner cone hole machining process |
| CN109623406A (en) * | 2018-12-23 | 2019-04-16 | 冯建娟 | A kind of hollow axis machining apparatus of speed reducer |
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| Publication number | Publication date |
|---|---|
| CN103658738B (en) | 2015-10-28 |
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